bit (version 4.5.0.1)

Summaries: Summaries of boolean vectors

Description

Fast aggregation functions for booltype vectors. namely bit, all, any, anyNA, min, max, range, sum and summary. Now all boolean summaries (except for anyNA because the generic does not allow it) have an optional range argument to restrict the range of evalution. Note that the boolean summaries have meaning and return values differing from logical aggregation functions: they treat NA as FALSE, min, max and range give the minimum and maximum positions of TRUE, summary returns counts of FALSE, TRUE and the range. Note that you can force the boolean interpretation by calling the booltype method explicitely on any booltypes input, e.g. min.booltype(), see the examples.

Usage

# S3 method for bit
all(x, range = NULL, ...)
# S3 method for bit
any(x, range = NULL, ...)
# S3 method for bit
anyNA(x, recursive = FALSE)
# S3 method for bit
sum(x, range = NULL, ...)
# S3 method for bit
min(x, range = NULL, ...)
# S3 method for bit
max(x, range = NULL, ...)
# S3 method for bit
range(x, range = NULL, ...)
# S3 method for bit
summary(object, range = NULL, ...)
# S3 method for bitwhich
all(x, range = NULL, ...)
# S3 method for bitwhich
any(x, range = NULL, ...)
# S3 method for bitwhich
anyNA(x, recursive = FALSE)
# S3 method for bitwhich
sum(x, range = NULL, ...)
# S3 method for bitwhich
min(x, range = NULL, ...)
# S3 method for bitwhich
max(x, range = NULL, ...)
# S3 method for bitwhich
range(x, range = NULL, ...)
# S3 method for bitwhich
summary(object, range = NULL, ...)
# S3 method for which
all(x, range = NULL, ...)
# S3 method for which
any(x, range = NULL, ...)
# S3 method for which
anyNA(x, recursive = FALSE)
# S3 method for which
sum(x, range = NULL, ...)
# S3 method for which
min(x, range = NULL, ...)
# S3 method for which
max(x, range = NULL, ...)
# S3 method for which
range(x, range = NULL, ...)
# S3 method for which
summary(object, range = NULL, ...)
# S3 method for booltype
all(x, range = NULL, ...)
# S3 method for booltype
any(x, range = NULL, ...)
# S3 method for booltype
anyNA(x, ...)
# S3 method for booltype
sum(x, range = NULL, ...)
# S3 method for booltype
min(x, range = NULL, ...)
# S3 method for booltype
max(x, range = NULL, ...)
# S3 method for booltype
range(x, range = NULL, ...)
# S3 method for booltype
summary(object, range = NULL, ...)
# S3 method for ri
all(x, range = NULL, ...)
# S3 method for ri
any(x, range = NULL, ...)
# S3 method for ri
anyNA(x, recursive = FALSE)
# S3 method for ri
sum(x, ...)
# S3 method for ri
min(x, ...)
# S3 method for ri
max(x, ...)
# S3 method for ri
range(x, ...)
# S3 method for ri
summary(object, ...)

Value

as expected

Arguments

x

an object of class bit or bitwhich

range

a ri or an integer vector of length==2 giving a range restriction for chunked processing

...

formally required but not used

recursive

formally required but not used

object

an object of class bit

Author

Jens Oehlschlägel

Details

Summaries of bit vectors are quite fast because we use a double loop that fixes each word in a processor register. Furthermore we break out of looping as soon as possible. Summaries of bitwhich vectors are even faster, if the selection is very skewed.

See Also

length

Examples

  l <- c(NA, FALSE, TRUE)
  b <- as.bit(l)
  
  all(l)
  all(b)
  all(b, range=c(3,3))
  all.booltype(l, range=c(3,3))
  
  min(l)
  min(b)
  
  sum(l)
  sum(b)
  
  summary(l)
  summary(b)
  summary.booltype(l)